Merge pull request #1 from eehlers/master - update from QuantLib-old original#15

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TKYCode wants to merge 2 commits intoeehlers:masterfrom

TKYCode:master

Commits on Jan 9, 2015

Merge pull request #1 from lballabio/master
TKYCode
committed

Commits on Jan 4, 2016

Merge pull request #2 from eehlers/master
TKYCode
committed